This product has a close on/off temperature setting with a 3 to 4 degress variance. It llows for a constant temperature in my application. It is compact in size and durable for extreme temperature applicatiosn
Very well designed with a “micro switch” not the by metal contacts. The switch has a “snap” to keep the oxidation from causing problems. Reliable 3 degrees F delta or hysteresis. excellent !!
It's very easy to wire up, and there's room inside the case for everything you need to do. I have a 240V AC unit on it right now and it's been working great for about a week.